Chapter 4 Quiz Flashcards
One of the top five cause of a pre-phlebotomy pre-analytical error is:
Patient incorrectly identified
Which transition based infection control precaution stops direct spread of bacteria by touching
Contact precautions
Which transmitting based infection control precaution stops agent dispersed by talking, coughing, or sneezing?
Droplet precaution
Which transmission based infection control precaution provides protection from dust particle?
Airborne precaution
When the coagulation of fresh whole food is prevented through the used of an anticoagulant. The straw-colored fluid that can be separated from the cellular element is:
Plasma
Which characteristic is inaccurate with respect to the anticoagulant dipotassium ethylenediaminetetraacetic acid (K2EDTA)?
Is used for most routine coagulation studies
Heparin inhabits the clotting of fresh whole blood by neutralizing the effect of:
Thrombin
- An evacuated tube with EDTA has a __________colored stopper
Lavender = PURPLE
An evacuated tube with heparin has a __________ colored stopper
Green
An evacuated tube with sodium citrate has a ___________ colored stopper.
Blue
OR LIGHT BLUE
An evacuated tube with no anticoagulant has a ______________ colored stopper
Red
An evacuated tube with sodium fluoride
Gray
An evacuated tube with thixotropic gel
Gold
The first category of steps in performing a venipuncture include:
Introduction yourself and briefly explaining the procedure to the patient.
The second category of step in performing a venipuncture include:
Identifying the patient, checking test requisitions, assembling equipment, washing hands, and putting on gloves.
The third category of step in performing a venipuncture include:
Selecting an appropriate site and preparing the site
The fourth category of step in performing a venipuncture include:
Reapplying the tourniquet and performing the venipuncture
The final category of step in performing a venipuncture include:
Removing the tourniquet, removing the needle, applying pressure to the site, and labeling all tubes.
The appropriate veins for performing a routine venipuncture are the
Cephalic, basilic, and median cubital
A blood sample is needed from a patient with intravenous (IV) fluid lines running in one arm. Which of the following is an acceptable produce?
Obtain sample from the other arm
How should the bevel of the needle be held during a venipuncture
Upward
A hematoma can be form if
All the above
Improper pressure is applied to a site after the venipuncture.
The patient suddenly moves, and the needle comes out of the vein.
The needle punctures both walls of the vein.
Phlebotomy problems can include
All the above
The use of improper anticoagulants
Misidentification of patients
Inadequate filling of an evacuated tube containing anticoagulation
Blood specimens are unacceptable for laboratory testing when
All the above
There is no patient name or. IDE notification number on the label.
The label on the request form and the label on the collection containers do not match.
The wrong collection tube been used ( for example anticoagulant additive instead of tube for serum).
If serum is allowed to remain on the clot for a prolonged period, which of the following effects will be noted
Elevated level serum potassium
A red pink appearance of serum/plasma can caused by:
Lysis of RBC (hemolyzed serum)
Which of the following ares is are acceptable for the collection of capillary blood from an infant
Medial of lateral plantar surface
The proper collection of capillary blood includes
All the above
Wiping away the first drop of blood.
Occasionally wiping away the site with a plain gauze pad to avoid the build up of platelet.
Avoiding the introduction of air bubble into the column of blood in a capillary collection tube.
A dark yellow appearance of serum/plasma can be caused by
Elevated bilirubin (jaundice, intercity serum).
A milky white appearance of serum/plasma can be caused by
Presence of lipids or fat (lipemic serum)
